The FT Series Heating Only, Boiler
Page 7
2.2 Specifications, 140 MBH
Model Name
FTHW140
Gas Input Rate
MAX
140,000 Btu/h
MIN
14,000 Btu/h
Installation
Indoor / Wall hung type
Flue System
Sealed Combustion Direct / Single Vent /Sidewall
Vent
Vent Run / Vent Material
2˝(50ft), 3˝(100ft) Schedule 40 CPVC, PP, PVC
Orifice Size
NG
0.244” (6.2 mm)
LP
0.185” (4.7 mm)
Gas Supply Pressure
NG
3.5˝ WC to 10.5˝ WC
LP
8.0˝ WC to 13.0˝ WC
Manifold Pressure
Gas type
LP
NG
Max fire
-0.130” WC (+/- 0.01)
-0.100” WC (+/- 0.01)
Min fire
0.004” WC (+/- 0.001)
0.002” WC (+/- 0.001)
Power Supply
Main Supply
120V 60Hz / 4A
Maximum Power
Consumption
160W
Ignition System
Direct Electronic Ignition / Automatic Flame Sensing
Burner System
Single Orifice Premixed Fuel Modulation Metal
Ceramic Infrared
Gas Valve System
Combination modulating (Current proportional)
Dimensions
W17 ⅜˝ - H29.0˝ – D14 ⅞˝
Shipping Weight
102 lbs (46 kg)
Main Controller / Control Display
NGTB-900CP / P-950EH
Water Pressure
CH Min 15 ~ Max 30 PSI
Connection Sizes
CH Supply/Return
1 ¼˝ NPT
Gas Inlet
3/4˝ NPT
Materials
Casing
Cold Rolled Carbon Steel
Heat Exchanger
Primary Heat Exchanger : Stainless Steel
Sub Heat Exchanger : Stainless Steel
Safety Devices
Optical Flame Sensor, Low Water Cut Off Sensor,
Flue Gas Limit Sensor, Overheat Cut Off Device,
Gas Valve Operation Detector,
Water Temperature Sensor, Over-heat Limit Switch
,
Air Pressure Sensor
Summary of Contents for FT Series
Page 52: ...Page 52 4 20 Ladder Diagram ...
Page 70: ...Page 70 6 2 Fault Tree Analysis 6 2 1 1 Flame detection ...
Page 80: ...Page 80 SECTION 10 Parts 10 1 100 MBH Casing Assembly ...
Page 82: ...Page 82 Heat Exchanger Assembly 100 MBH ...
Page 84: ...Page 84 Blower Assembly 100 MBH ...
Page 86: ...Page 86 Casing Assembly 10 2 140 MBH ...
Page 88: ...Page 88 Heat Exchanger Assembly 140 MBH ...
Page 90: ...Page 90 Blower Assembly 140 MBH ...
Page 92: ...Page 92 Casing Assembly 10 3 199 MBH ...
Page 94: ...Page 94 Heat Exchanger Assembly 199 MBH ...
Page 96: ...Page 96 Blower Assembly 199 MBH ...
Page 98: ...Page 98 Notes ...
Page 99: ...The FT Series Heating Only Boiler Page 99 Notes ...